Type-writing machine.



(I. B. CORCGR'RN;

TYPE WRHING MACHiNE.

APPLICATION FILED SEPT. 9, 1914.

1,1825%. Patented May 9,1916.

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oonnnnins n. coaconan. or new roan, n. a, assrenos as onnnnwoon 'rYPE- warren CGMPANY, or new roles, n. r, a CGRPORATIGN or :ostawann.

TY?E-WRITING MACE-l1 E.

To (all whom it may ronr ern Be .it known that l, Coanrmins B. COR: (TURAN, a citizen of the United States, residing in borough of Bronx, in the count of Bronx, city and State of New York, have invented certain new and useful improvements in 'lypell ritingg Machines. of which the following is a specification.

lhis invention relates to tvpewriting ma chines, and is more particularly directed to. thepaper feeding mechanism thereof, the main object heing'to provide means whereby a large number of work-sheets, having together a bulk or thickness not conveniently accommodated by the feeding means ordinarily provided; may be readily receive-dbetween the paper apron and platen. and advanced around the platen by the feed rolls.

Certain dii'liculties have barred the way to the adaptation of existing methods for the purpose in view. and the 1) it}')Q1'-1QCGlV- ing and fee-dii'ig devices at present employed have been found to require rearrangement, and to be equipped with novel means of actuation, to be readily capable of elliciently serving the desired function. The desired object has therefore been accomplished in in the present invention. by providing a common pivotal support for the carriers of the rear and front series of feed rolls, and that support rendered movable to and from the platen to alternately press the two series of feed rolls together against the platen and withdraw them therefrom, the separate se ries of feed roll carriers on their common pivotal support having a self-balancing ac tion which enables-both series of feed rolls,

when pressed toward the platen, to grip init being desirable to produce a roll-sup-' porting structure of light weight while eniplo ving suilicient tension to press the feed rolls serviceahly to vard the platen, 1' pro vide a number of pressure springs at inter- Specification of Letters Patent.

platen.

tan View of one of the tension-adjusting.

Patented Mays, 393$.

a ncaeiaa filed September a, ram. Serial No. senses.

i'als along; said structure in order that the tension an er which the rolls are pressed to the platen may be equally distributed throughout the length of the line of applicas tioin and I also provide means for adjustin the tension of the sprin 's in order that the pressure mag be properly regulated.-

of the same, showing the feed rolls and paper apron as applied to the platen Fig.

'3 is a similar, fragmentary View, showing the feed rolls and apron released from the Fig. 4: 1s an enlarged sectional desprings. Fig. 5 is a detail view of the parts torming the hanger for the feed rolls, as

disassembled.

Theinvention is herein illustrated as applied to an Underwood typewriting machine ha ving a platen l with an axle 2 journaleol in the ends 8 ol' the platen frame. the'linespacing mechanism also being shown, ineluding the line-space wheel l, pawl 5*antl sprirw-retnrning slideti. The platen frame is also provided with a wheel or roller 7, whereby it may run along the usual caseshift supporting rail 8.

To fulfil the purpose of the invention, of admitting a multiplicity of work-sheets between the paper apron and the platen, to he lied armind the platen by the feed'rolls, I have shown the paper apron 9 as hinged to the lower end of the paper table it), said paper apron swinging downwardlyhy its own gravitation to be in a receptive position with the feed rolls; as l], 12; said paper apron in that receptive position being supported as by the feed roll supports.

The feed rolls Hand 12 are mounted. as is usual along rods as 13. and ll. and said rods may he carried respectively at the outer ends of arms 15 and 16, said arms being integral or rigidly connected one withanother and mounted at an intermediate point upon a floating, flexible rod 17, which thus forms a common fulcrum for the arms 15 and 16, and consequently for the support oft-he rear and front rolls 11 and 12. in the drawing,

the arms and 16 are shown as comprising a curved hanger or member wh1ch,'w1th the rods 17,13 and 14, forms what may be 5 is pivoted a link 23, saidlink having pivotal engagement atitsopposite end with an arm 24 carried by a shaft 25 journaled in bear ings 26 in the platen frame, and having an operating "lever 27- with finger-piece 28.

29 Carried from the opposite ends of the platen frame, centrally beneath .the cradle hanger, is 'a longitudinal brace, which may be in the form of an angle strip 29, whose purpose is to support said cradle hanger 2.5 and to stiffen the operative connections therefor. Thus the rock shaft 19 is braced 4 throughout its length by a series of brackets 30 which are rigidly oonnected'to said brace 29 at one end and at their opposite 30' ends have journal hearings to receive and carry said rock shaft. The cradle hanger is tensionally supported from said brace 29,

- the means whereby it is so supported consisting of coiled springs 31 surrounding 35 threaded studs 32', which extend from collars .33 mounted upon the rod 17, said threaded studs beingguided within hollow mounts or seats 34, which are secured upon rail 29 and engage the opposite ends of the 40 coiled springs 31. Each threaded stud 32 has a nut, as 35, thereon,whichnut may be either a thumb nut, or a nut with faces. or

other provision for handling with tools, the purpose of said nuts'being to vary the tension of the prings 31. In order to regulate the tension exercised upon the cradle hanger throughout its length, the springs 31,.w1th\ associated parts, provided at suitable,inher- -vals along rod 17, and operating from fiie 5n rigid support provided by brace 29, serve, when regulated, to press evenly against-rod 17a) thereby cause the two series of 'feed rolls to be urged under uniform pressure against the platen, this etfectEbeing' obtali'ued' on account of the non-rigid or flexicharacter of the cradle hanger. It is evident that if the support for the said'feed rolls were to be made of sufficient rigidity to avoid liability of springing and to insure efficient engagement ofallthe' rolls carried thereby along its length with the platen, the

structure necessary for that purpose would be too cumbersome to permit of practical employment, and I have. resorted to the '85 means herein describedzentailing the use of strong'though non-rigid support of relatively light weight and moderate compass,

equipping. the same with springs whose tension may be varied, and whose tension is directed upon 'the support from a rigid base, in this way achieving the purpose along extended lines of feed-rollsof directing them under uniform tension against the platen. -The arm 24 andlink 23 comprise a toggle joint, its "connection through arm 22 with rock shaft 19 being such' that the toggle members-are at an angleto. each other when the feed rolls are pressed by their 'springs against the platen, and the action of straightening the toggle, in the operation of.

lever27 forces'saidfeed rolls away from the platen against the tension of their springsto afford the relatively large clear- I ance required for the introduction of a number' of work-sheets.

, Suitable stop means are provided for-the toggle joint to arrest its'movement' and de. tain the feed rolls in their released position,

' such means being here shown'as a top pin 36 upon the platen frame in thepath of the arm 24, to prevent movement of the toggle joint beyond the straightened position. It

will'beseen that upon the application-of slight pressure upon the lever 27, in the opposite direction, to break the toggle joint,

pel the feed rolls to their operative position.

The arms 18, which carry the rod 17 and are themselves fast'upon the rock shaft 19, may each have a hub 37 with a shouldered portion 38, a separate shouldered sleeve or hub portion 39, which may be secured to the rock shaft 19, as by-a set screw 40, engaging with said shouldered hub 37 at one side thereofwhile the opposite side of said shouldered hub 37 may abut against a bracket 30,'whereby said arm 18 is confined upon the rock shaft 19 and causd to rock pressed into engagement with the platen,

carry said paper apron with, them into its operative position in which it directs the work-sheets being advanced by the pressure rollers. I

. Aside from the saving in bulk and weight in the formation of a non-rigid support for the feed rolls, an. inherent advantage in t such structure, especially where employed with long platens, as used for billing machines, lies in its ability by aid of the adjustable tension devices aforesaid, to insure the application of the feed rolls to' the which, as stat wings 95 the pressure of springs 31 will at once immenses platen throughout its length under uniform pressure; "whereas, when-pie roll-holding 'Variations may be resorted to within the scope ot'the invention. and portions of the will! improvements may be used without others.

Having thus described my invention, l

claim:

1. In a typewriting machine, the coinbination with a revoluble platen, of two series of feed rolls arranged along said platen arms upon which said rolls are mounted,

said arms having a common support mo"- ableto carry them together to and from the platen. and adjustable spring means for. pressing-said support'evenlv toward the platen throi'ighoutits length.

In a "t VP\\'1'llZ1llI machine. the combination with arevo'luble platen, of two series of feed wrollslarranged along said platen -'arms upon;\\'lncli said rolls are mounted, saidarms-having a common support 1novable to carry them together to and from the platenfiwlnleleaving" said series of spring rollsit'ree. to accommodate themselves under even-pressure against the platen. 3. In a typewritmg machine. the combination w th a revoluble platen. olteed rollsarranged along said platen. arms marrying said feed rolls, a, floating support there-{9r .vhereby said arms. and rolls are movable to and from said platen.- and adjustable spring means bearing upon said support at intervals throughout its length. causing said teed rolls to cooperate under uniform pressure withsaid platen.

wIn a t vpewriting machine. the combination with a revolubleplaten. ot' teed rolls arrangedalong said platen. arms for said feed rolls. a floating nona'igid support on which said arms are mounted. means where bythey are movable to and from said platen, a rigid brace. and-adjustable spring J means upon said brace hearing at intervals rupon said support throughout its length,

arranged along said platen. means carrying said riolls,a.flexible support for said carrying means-means whereby said tlexiblesupportjis movable to and from said platen, a

.rigirlbrace. and adjustable spring means upon saidrbrare; bear-in; at intervals upon vpressure with said platen. (3. in a typewritinge machine.

allel series ot feed rolls arranged along a ..sa id Sl[PPOIt tlH'OllgIllQllt its length. causing saidfeed rolls to. cooperate under uniform the coinbination with a revoluble'platen. ottwo parlength. Y

common support on which they are free to rot-leoppositely, said support being movable to carry said series of feed rolls together to and from the platema rigid brace. and adjustable spring means for pressing said support evenly toward the platenthroughout its length. 3

7. In a typewriting machine, the combination with a. revoluble platen, of a cradle hanger eonmrising parallel rods each carrying a series'ot' teed rolls, spacing arms in which said rods are mounted, an intermediate rod pii otally supporting said spacing arms. a rigid brace, and adjustable spring means for .pressing said cradle hanger evenly toward the platen throughout its In a typewriting. machine, the combination with a reroluble platen, of feed rolls arranged along said platema non-rigid support therefor. means whereby they are move able together to and from said platen, spring means to urge said support toward the platen. a rigid brace, and means to move said support to a position of detention with the rolls releasedfrom the platen.

9. In a typewriting machine. the combi nation with a revomble platen,.of feed rolls arranged along saidplaten. a non-rigid support therefor. means whereby they are movable together to and from the platen. a rigid brace. adjustable spring means to urge said support evenly toward the platen througlr out its length. and means to move said support to a position of detention with the rolls released from the platen.

10. in a typewritingz machine. the combination with a revoluble platen, of feed rolls arranged along said platen, armscarrying said rolls, a non-rigid support for said arms,

' means wherelrisaid supportkarms and rolls are movable together toe-and from said platen. spring means to, -1irge said support to 'ard the platen. antttrip return means to more said support to a position of detention with thc rolls released from'the platen.

11. in a typewriting machine. the combination with a revoluhle platen. of feed rolls arranged along said platen, arms carrying said rolls. a non-rigid support for said arms. means'whereby said support. arms and rolls are movable together to and from said platen. spring means to urge said support toward the platen. and a toggle device to move said support to a positionof deplaten.

llln a ty ewriting. machine. they combination with a revoluble platenQfeed rolls arranged along said ')laten. arnis carrying said rolls, a non-rigid support for said arms.

means whereby said, support. arms androlls are movable together to and from said I platein.a rigid brace. spring means. upon said b ace to urge said support toward the tention with the rolls released from the ,v

platen, and means to move said supportina position of detention with the rolls released from the platen.

13. In a typwriting machine, the combination with a revoluble platen, of feed rolls arranged along said platen, arms carrying said rolls, a non rigid support for said arms,

means whereby said support,.arms and rolls -are' movable together to and from said I.. v. a 7 .means upon Said brace'to urge said support platen, a rigid brace, adjustable spring evenly toward the platen throughout "its length, and means to move said support to a position of detention with the rolls released from the platen. p 4 a g 14. In a typewriting machine,'th'e combination with a revoluble platen, ofparallel series of feed rolls therefor, a common supv port whereby said series of rolls aremov-- able together to and from the platen, a

rigid brace having springs urging said support toward the platen, a rock shaft having arms engaging said support, and means for operating Said rock shaft to swing said roll support and thus release the rolls from the platen. i

,15. In a typewriting machine, the combination with a revoluble platen, of parallel seriesv of feed rolls therefor, a common support whereby said series of rolls are movable iltogether to and from the platen, springs port and thus release the rolls 'from the .platen. 40

. {urging said support toward the platen, a

brace extending lengthwise of the platen, a

rock shaft having arms engagingsaid sup;

port, supporting brackets'upon, said, brace for-said rock shaft, and means for oper-- ating said rock shaft to swing said roll sup-' 16. In a typewriting machine, the combination with *a revoluble platen, of parallel series of feed rolls therefor, a common support whereby said series of rolls are movable together to and from the platen, springs urging said support toward the platen, a rock shaft having arms engaging said support, and trip-return means for operating said rock shaft to swingsaid roll support and thus release the rolls from the platen.

17.-In a typewriting machine, the-combination with a revoluble platen,'of parallelseries of feed rolls therefor, acommon support whereby said series of rolls are movable together to and from' the platen, a brace extending lengthwise of the platen, a series of pressure springs arranged at intervals 'be-' tween, said brace and support, and means for adjusting the tension of said springs in the i application of even pressureupon said sup-- .n 0

port.

I 18. In a-typewriti-ng machine, the combination with a revoluble platen, of feed'rolls arranged along said platen, supports for said feed rolls, said supports movable toward ands from said platen, a paper apron supported with spring means for pressingsaid rolls against the platen throughout their linesof ble shaft and pressure by saidroll supports movable with said feed rollstoward the platen, and adjustable i ring means for pressing said rolls evenly igirin stthe platen throughout their lines ofengagnment therewith.

19. The 'typewriting machine, the combination witlr'a revolubl'e platen, offeed rolls arranged along said platen, supports for said feed rolls, said supports movable toward andfrom said platen, a paper table, a paper apron hinged thereto, supported by-said rollsupports .andmovable with said feed rolls" toward theplaten,.. and I adjustable spring means for pressing said rolls evenly against the platen throughout their lines of engage-L ment' therewith.

20. In a typewriting machin, tliecom,bi-

nation with a 'revoluble platen,. 'o ftwqse'r'ies 1 offeed rolls therefor, a common-support movable to c'arry said series offeed rolls to gether to" and 'from= the platen,' a 'paper apron engaging with said support .to move therewithtoward the platen, .and 'a rigid braceprovided with spring meansfor press ing said rollsagainst the platen throughout their lines of engagement therewith. 21. In a typewriting'machine, the combi nation with a. revoluble platen, of twoseries of feed rolls therefor, .a common support movable to carry said series of feedrolls together to and fromthe fsiaten; a paper table,

a paper apron hinged thereto and engaging ward theplaten, and a' rigid; brace provided engagement therewith.

22. In a 'typewritlng machine, in. combiwith said support to.ingve therewith to-' nation, a revoluble platen,'- feed rolls, a

spring mounted fiexiblefloating shaftifor' said feed rolls and'a rigid. brace against which the pressure of said springs is exerted.

23. In a typewriting machine, in combi-. 1

nation, a revoluble platen, sets of feed rollsarranged tocooperate therewith, liangers in which said sets of feed'rollsare mounted, a flexible shaft on which said hangers are mounted, a' rigid brace, and springs acting between said brace" and flexible shaft, to

press the latter toward the-platen.

24..In"a.typewrit1ng machine, in i eombie .nation, a revoluble platen, sets of feed rolls messes ranged to cooperate with said platen, curved hangers in the endsof which said sets of feed rolls are mounted, a flexible shaft passing through said curved hangers between the ends thereof, collars on said shaft, a rigid brace, beneath said flexible shaft, and springs resting on'said brace-and engaging said collars."

26. In a typewriting machine, in combinat on a revoluble platen, sets of feed rolls arranged to cc'ciperate therewith, hangers in which said sets of feed rolls are mounted, a

flexible' shaft on which said hangers are A mounted, a rigid brace, springs acting between said brace and said flexible shaft, w

said flexible shaft and pressure rolls from platen engagement.

CORNELIUS B. CORCORAN. Witnesses;

VV. 0. NEsTPHAL, JULIUs DUCKSTINE. 

